AWS Security Hub is a service designed to simplify and streamline security management for AWS accounts and Regions. It aggregates alerts, enables automated remediation, and assigns a security score based on passed and failed controls. The security score is a measure of alignment with best practices and compliance standards, which can improve as you address findings and controls.
To improve the security score, there are four mechanisms to consider. These include remediating failed controls, suppressing findings, disabling irrelevant controls, and customizing parameter values. Some controls to address are AutoScaling.3, EC2.18, IAM.6, EC2.2, and ECS.5, regarding aspects like IMDSv2, security group configurations, hardware MFA for the root user, default security group settings, and container access configurations.
Recommendations include disabling controls, updating security group parameters, enabling MFA for the root user, changing default security group settings, modifying task definition parameters, and using automation rules to suppress findings. Central configuration in Security Hub allows for policy creation to manage controls across accounts, emphasizing the importance of proactive security measures and tailored configurations.
Organizations can leverage automation, customized settings, and guardrails provided by AWS services like Security Hub, Firewall Manager, and AWS Config to address threats, enhance security posture, and adhere to best practices. By optimizing security controls, monitoring compliance, and implementing remediation strategies, organizations can bolster their security defenses in the rapidly evolving cloud environment.
Article Source
https://aws.amazon.com/blogs/security/top-four-ways-to-improve-your-security-hub-security-score/